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Side-by-side financial comparison of ADTRAN Holdings, Inc. (ADTN) and REPLIGEN CORP (RGEN). Click either name above to swap in a different company.

ADTRAN Holdings, Inc. is the larger business by last-quarter revenue ($291.6M vs $197.9M, roughly 1.5× REPLIGEN CORP). REPLIGEN CORP runs the higher net margin — 6.7% vs -1.2%, a 7.9% gap on every dollar of revenue. On growth, ADTRAN Holdings, Inc. posted the faster year-over-year revenue change (20.1% vs 13.6%). ADTRAN Holdings, Inc. produced more free cash flow last quarter ($30.6M vs $17.6M). Over the past eight quarters, REPLIGEN CORP's revenue compounded faster (14.4% CAGR vs 13.5%).

Adtran, Inc. is an American fiber networking and telecommunications company headquartered in Huntsville, Alabama. It is a vendor of both residential and enterprise networking equipment, along with administrative software for network management and deployment. Its customers include communications service providers, governments, enterprises and utilities.

Repligen Corporation is a global life sciences company devoted to the development and commercialization of innovative bioprocessing technologies and systems that enable efficiencies in the process of manufacturing biological drugs.2025 The company is based in Waltham, Massachusetts,2014 and was incorporated in Delaware in 1981. A public company, Repligen is listed on the NASDAQ exchange under the symbol RGEN. As of 2025, Repligen employs over 1,900 employees globally and serves primarily biop...

ADTN vs RGEN — Head-to-Head

Bigger by revenue
ADTN
ADTN
1.5× larger
ADTN
$291.6M
$197.9M
RGEN
Growing faster (revenue YoY)
ADTN
ADTN
+6.4% gap
ADTN
20.1%
13.6%
RGEN
Higher net margin
RGEN
RGEN
7.9% more per $
RGEN
6.7%
-1.2%
ADTN
More free cash flow
ADTN
ADTN
$13.0M more FCF
ADTN
$30.6M
$17.6M
RGEN
Faster 2-yr revenue CAGR
RGEN
RGEN
Annualised
RGEN
14.4%
13.5%
ADTN

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ADTN
ADTN
RGEN
RGEN
Revenue
$291.6M
$197.9M
Net Profit
$-3.6M
$13.3M
Gross Margin
39.0%
52.5%
Operating Margin
1.5%
9.0%
Net Margin
-1.2%
6.7%
Revenue YoY
20.1%
13.6%
Net Profit YoY
92.2%
143.9%
EPS (diluted)
$-0.02
$0.24

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
ADTN
ADTN
RGEN
RGEN
Q4 25
$291.6M
$197.9M
Q3 25
$279.4M
$188.8M
Q2 25
$265.1M
$182.4M
Q1 25
$247.7M
$169.2M
Q4 24
$242.9M
$174.1M
Q3 24
$227.7M
$154.9M
Q2 24
$226.0M
$154.1M
Q1 24
$226.2M
$151.3M
Net Profit
ADTN
ADTN
RGEN
RGEN
Q4 25
$-3.6M
$13.3M
Q3 25
$-10.3M
$14.9M
Q2 25
$-20.5M
$14.9M
Q1 25
$-11.3M
$5.8M
Q4 24
$-46.1M
$-30.3M
Q3 24
$-33.3M
$-654.0K
Q2 24
$-49.7M
$3.3M
Q1 24
$-330.8M
$2.1M
Gross Margin
ADTN
ADTN
RGEN
RGEN
Q4 25
39.0%
52.5%
Q3 25
38.3%
53.2%
Q2 25
37.3%
50.0%
Q1 25
38.4%
53.6%
Q4 24
36.9%
26.1%
Q3 24
36.5%
50.0%
Q2 24
36.0%
49.8%
Q1 24
31.1%
49.5%
Operating Margin
ADTN
ADTN
RGEN
RGEN
Q4 25
1.5%
9.0%
Q3 25
-1.0%
8.9%
Q2 25
-5.0%
7.6%
Q1 25
-1.6%
3.9%
Q4 24
-6.9%
-17.7%
Q3 24
-11.5%
-5.1%
Q2 24
-17.0%
1.0%
Q1 24
-153.1%
1.3%
Net Margin
ADTN
ADTN
RGEN
RGEN
Q4 25
-1.2%
6.7%
Q3 25
-3.7%
7.9%
Q2 25
-7.7%
8.2%
Q1 25
-4.5%
3.4%
Q4 24
-19.0%
-17.4%
Q3 24
-14.6%
-0.4%
Q2 24
-22.0%
2.2%
Q1 24
-146.2%
1.4%
EPS (diluted)
ADTN
ADTN
RGEN
RGEN
Q4 25
$-0.02
$0.24
Q3 25
$-0.12
$0.26
Q2 25
$-0.24
$0.26
Q1 25
$-0.14
$0.10
Q4 24
$-0.58
$-0.55
Q3 24
$-0.38
$-0.01
Q2 24
$-0.63
$0.06
Q1 24
$-4.20
$0.04

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
ADTN
ADTN
RGEN
RGEN
Cash + ST InvestmentsLiquidity on hand
$95.7M
$767.6M
Total DebtLower is stronger
$542.2M
Stockholders' EquityBook value
$145.8M
$2.1B
Total Assets
$1.2B
$2.9B
Debt / EquityLower = less leverage
0.26×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ADTN
ADTN
RGEN
RGEN
Q4 25
$95.7M
$767.6M
Q3 25
$93.7M
$748.7M
Q2 25
$106.3M
$708.9M
Q1 25
$101.3M
$697.2M
Q4 24
$76.0M
$757.4M
Q3 24
$88.5M
$784.0M
Q2 24
$111.2M
$809.1M
Q1 24
$106.8M
$780.6M
Total Debt
ADTN
ADTN
RGEN
RGEN
Q4 25
$542.2M
Q3 25
$537.9M
Q2 25
Q1 25
Q4 24
$525.6M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
ADTN
ADTN
RGEN
RGEN
Q4 25
$145.8M
$2.1B
Q3 25
$141.6M
$2.1B
Q2 25
$169.6M
$2.1B
Q1 25
$138.9M
$2.0B
Q4 24
$127.0M
$2.0B
Q3 24
$205.6M
$2.0B
Q2 24
$213.6M
$2.0B
Q1 24
$260.8M
$2.0B
Total Assets
ADTN
ADTN
RGEN
RGEN
Q4 25
$1.2B
$2.9B
Q3 25
$1.2B
$2.9B
Q2 25
$1.2B
$2.9B
Q1 25
$1.2B
$2.9B
Q4 24
$1.2B
$2.8B
Q3 24
$1.3B
$2.8B
Q2 24
$1.3B
$2.9B
Q1 24
$1.3B
$2.8B
Debt / Equity
ADTN
ADTN
RGEN
RGEN
Q4 25
0.26×
Q3 25
0.26×
Q2 25
Q1 25
Q4 24
0.27×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
ADTN
ADTN
RGEN
RGEN
Operating Cash FlowLast quarter
$42.2M
$25.7M
Free Cash FlowOCF − Capex
$30.6M
$17.6M
FCF MarginFCF / Revenue
10.5%
8.9%
Capex IntensityCapex / Revenue
4.0%
4.1%
Cash ConversionOCF / Net Profit
1.93×
TTM Free Cash FlowTrailing 4 quarters
$98.0M
$93.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ADTN
ADTN
RGEN
RGEN
Q4 25
$42.2M
$25.7M
Q3 25
$12.2M
$48.1M
Q2 25
$32.2M
$28.6M
Q1 25
$43.2M
$15.0M
Q4 24
$2.4M
$39.2M
Q3 24
$43.3M
$49.3M
Q2 24
$19.9M
$42.2M
Q1 24
$37.9M
$44.7M
Free Cash Flow
ADTN
ADTN
RGEN
RGEN
Q4 25
$30.6M
$17.6M
Q3 25
$4.2M
$43.4M
Q2 25
$27.5M
$21.5M
Q1 25
$35.8M
$11.4M
Q4 24
$-895.0K
$33.6M
Q3 24
$37.1M
$42.3M
Q2 24
$8.4M
$37.4M
Q1 24
$24.4M
$36.4M
FCF Margin
ADTN
ADTN
RGEN
RGEN
Q4 25
10.5%
8.9%
Q3 25
1.5%
23.0%
Q2 25
10.4%
11.8%
Q1 25
14.4%
6.8%
Q4 24
-0.4%
19.3%
Q3 24
16.3%
27.3%
Q2 24
3.7%
24.3%
Q1 24
10.8%
24.0%
Capex Intensity
ADTN
ADTN
RGEN
RGEN
Q4 25
4.0%
4.1%
Q3 25
2.9%
2.5%
Q2 25
1.8%
3.9%
Q1 25
3.0%
2.1%
Q4 24
1.4%
3.2%
Q3 24
2.7%
4.5%
Q2 24
5.1%
3.1%
Q1 24
6.0%
5.5%
Cash Conversion
ADTN
ADTN
RGEN
RGEN
Q4 25
1.93×
Q3 25
3.23×
Q2 25
1.92×
Q1 25
2.57×
Q4 24
Q3 24
Q2 24
12.70×
Q1 24
21.35×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

ADTN
ADTN

Subscriber Solutions$96.2M33%
Optical Networking Solutions$81.8M28%
Access Aggregation Solutions$64.6M22%
Services And Support$48.9M17%

RGEN
RGEN

Segment breakdown not available.

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